This closure can be used with {@Collection #filter()} and is used internally
by {@ArrayCollection #select()}.
/**
* @param object $object
* @param string $field
*
* @return mixed
*/
public static function getObjectFieldValue($object, $field)
{
$propertyAccess = PropertyAccess::createPropertyAccessorBuilder()->enableMagicCall()->enableExceptionOnInvalidIndex()->getPropertyAccessor();
try {
return $propertyAccess->getValue($object, $field);
} catch (NoSuchPropertyException $e) {
return parent::getObjectFieldValue($object, $field);
}
}
/**
* {@inheritDoc}
*/
public function matching(Criteria $criteria)
{
$expr = $criteria->getWhereExpression();
$filtered = $this->elements;
if ($expr) {
$visitor = new ClosureExpressionVisitor();
$filter = $visitor->dispatch($expr);
$filtered = array_filter($filtered, $filter);
}
if ($orderings = $criteria->getOrderings()) {
foreach (array_reverse($orderings) as $field => $ordering) {
$next = ClosureExpressionVisitor::sortByField($field, $ordering == Criteria::DESC ? -1 : 1);
}
usort($filtered, $next);
}
$offset = $criteria->getFirstResult();
$length = $criteria->getMaxResults();
if ($offset || $length) {
$filtered = array_slice($filtered, (int) $offset, $length);
}
return new static($filtered);
}
public function testSortDelegate()
{
$objects = array(new TestObject("a", "c"), new TestObject("a", "b"), new TestObject("a", "a"));
$sort = ClosureExpressionVisitor::sortByField("bar", 1);
$sort = ClosureExpressionVisitor::sortByField("foo", 1, $sort);
usort($objects, $sort);
$this->assertEquals("a", $objects[0]->getBar());
$this->assertEquals("b", $objects[1]->getBar());
$this->assertEquals("c", $objects[2]->getBar());
}
public function testArrayComparison()
{
$closure = $this->visitor->walkComparison($this->builder->eq("foo", 42));
$this->assertTrue($closure(array('foo' => 42)));
}
/**
* Select all elements from a selectable that match the criteria and
* return a new collection containing these elements.
*
* @param Criteria $criteria
* @return Collection2
*/
public function matching(Criteria $criteria)
{
$this->initialize();
$expr = $criteria->getWhereExpression();
$filtered = $this->entities;
if ($expr) {
$visitor = new ClosureExpressionVisitor();
$filter = $visitor->dispatch($expr);
$filtered = array_filter($filtered, $filter);
}
if (null !== ($orderings = $criteria->getOrderings())) {
$next = null;
foreach (array_reverse($orderings) as $field => $ordering) {
$next = ClosureExpressionVisitor::sortByField($field, $ordering == 'DESC' ? -1 : 1, $next);
}
usort($filtered, $next);
}
$offset = $criteria->getFirstResult();
$length = $criteria->getMaxResults();
if ($offset || $length) {
$filtered = array_slice($filtered, (int) $offset, $length);
}
return new ArrayCollection($filtered);
}
